Results from this pilot project will be used as preliminary data to support design of an immediate follow-up proposal to NIH/NIDCR for funding a multi-center RCT to evaluate the effect of treating periodontal infection on glycemic control in type 2 diabetes. If results from the full scale clinical trial provide evidence that treating periodontal infection contributes to improved glycemic control, then diagnosis and treatment of periodontal infection in subjects with type 2 diabetes could be substantiated as an important component in management of diabetes.